Cita APA (7a ed.)

Viorst, J., & Chorao, K. (1988). The good-bye book. Atheneum.

Cita Chicago Style (17a ed.)

Viorst, Judith, y Kay Chorao. The Good-bye Book. New York: Atheneum, 1988.

Cita MLA (8a ed.)

Viorst, Judith, y Kay Chorao. The Good-bye Book. Atheneum, 1988.